Socket wrench with a nut ejector



21, 1965 R. 1.. COOLEY, SR 3, SOCKET WRENCH WITH A NUT EJECTOR FiledOct. 19. 1962 I XXXXXI AAXKXXXXX )KIKK l 2 F lg.

INVENTOR. ROBERT L. GO0LE)1$ R.

A TTORNEKS United States Patent O 3,224,302 SOCKET WRENCH WITH A NUTEJECTOR Robert L. Cooley, Sr., 7660 Tori-em St., La Mesa, Calif. FiledOct. 19, 1962, Ser. No. 231,745 2 Claims. (Cl. 81-1241) The presentinvention relates to a nut-ejector type socket wrench.

The wrench of the present invention includes an elongated sleeve havinga socket at one end for receiving a nut which is to be turned. Thesleeve is provided with an elongated, longitudinally disposed andconstant diameter cylindrical bore, which is axially aligned with thesocket and extends to the socket. The sleeve also includes a secondelongated, constant diameter cylindrical bore, which is axially alignedwith the first mentioned bore, and is of larger diameter than the firstmentioned bore. The bores being so aligned and of different diameters,form a should-er at the junction of the bores. The end of the largerdiameter bore, opposite the junction, terminates in a cylindricallyshaped inwardly extending shoulder.

An elongated, cylindrically shaped, nut-ejector rod is disposed withinthe sleeve. This rod is of constant diameter throughout the majorportion of both bores, and the diameter is substantially the same as thediameter of the smaller bore. This rod is provided with a shoulderwithin the larger diameter bore, which shoulder is arranged to abut theaforementioned inwardly extending shoulder of the sleeve. The rod isalso provided with a section which extends outwardly of the largerdiameter bore and beyond the sleeve. This rod is also provided with alongitudinal and cylindrical bore at that end thereof which is adjacentthe socket for receiving the end of a screw of the bolt.

A coil spring is interposed between the shoulders within the secondmentioned bore, and surrounds the nutejector rod. This spring is undercompression and normally holds the rod in a position in which the endthereof is removed from the socket. The section of the rod which extendsoutwardly can be moved inwardly for engaging and ejecting a nut withinthe socket.

Other features and the advantages of the present invention will beapparent from the following description, reference being had to theaccompanying drawing, wherein a preferred embodiment of the invention isillustrated.

In the drawing:

FIG. 1 is a side view of the wrench;

FIG. 2 is a side view of the wrench, the sleeve and part of the rodbeing shown in section, the section being taken along line 22 of FIG. 1,said view being on a larger scale than that of FIG. 1, and

FIG. 3 is an end view looking in the direction of arrow 3 of FIG. 2.

Referring more in detail to the drawing, the wrench is shown at 20, andincludes threemajor parts; namely, the sleeve 22, the ejector rod 24 andthe coil spring 26.

The sleeve 22 is elongated and is recessed as at 28, to provide a socket30 for receiving a nut (not shown). The sleeve is provided with twoaxially aligned, cylindrical bores 32 and 34, which extendlongitudinally of the elongated sleeve. One end 36 of the bore 32terminates at the socket 30. The bore 34 is of larger diameter than thebore 32, and a junction of these bores provides a cylindrical shoulder38. The end 40 of the bore 34, opposite the shoulder or junction 38, isspun inwardly so as to provide a cylindrical shoulder 42.

The rod 24 is cylindrical in shape and complements the bore 32. Theejector end 44 thereof is longitudinally recessed as at 46, forreceiving the screw on which the nut is threaded or is to be threaded.The opposite end of the rod 24 is provided with a fixed collar 48, whichprovides a shoulder 50. This shoulder 50 confronts the 3,224,302Patented Dec. 21, 1965 shoulder 38. The end 52 of the rod extendsoutwardly beyond the end 40 of the sleeve 22. The coil spring 26surrounds that portion of the rod 24 which is disposed Within the bore34. One end of the spring 26 abuts the shoulder 38 on the sleeve, andthe other end of the spring abuts the shoulder 50 on the collar 48. Thisspring is under compression and normally urges the rod 22 to the right,as viewed in the drawing. The collar 48 provides a second shoulder 54,which is adapted to abut the shoulder 42 on the sleeve, to limit theextent of movement of the rod to the right.

The rod 24, including the collar 48 and the extension 52, are formed ofone piece of material and all parts thereof are circular in shape inlateral cross sections. Preferably, that portion of the sleeve 22, whichsurrounds the bore 34, is of larger outside diameter than that portionwhich surrounds the bore 32.

As previously stated, the spring 26 is under compression, whereby theend 44 of the rod is at the extreme right end of the socket 30, or maybe to the right of the extreme end of the socket 30, so that the socket30 can receive a nut. If the nut is on a screw or bolt and the boltextends outwardly of the nut, such extended portion of the screw will bereceived by the recess 46 in the left end of the rod 24. Preferably, theportion 56 of the sleeve is knurled. As the nut is removed from thescrew, the rod 24 is moved to the left by pressing inwardly on theextension 52, and in so doing, the nut is ejected from the socket 30.

From the foregoing, it is readily apparent that there has been provideda simple nut-ejector type socket wrench, which can be manufactured at arelatively low cost. Only three major parts are necessary: namely, thesleeve, the rod and the spring. The invention is particularly useful forsmall-scale nuts. The rod is formed of one piece, which can be readilymanufactured by a screw machine. The sleeve is formed as an integralstructure, and requires only two bores in addition to the socket 30. Inassembling, it is necessary only to insert the rod in posi tion and thenby a simple spinning operation, form the shoulder 42 for retaining therod within the sleeve.

While the form of embodiment herein shown and described, constitutespreferred form, it is to be understood that other forms may be adoptedfalling within the scope of the claims that follow.

In the claims:

1. A nut-ejector type socket wrench, comprising in combination:

(A) An integral and elongated sleeve having the shape (1) a socket for anut at one end of the sleeve;

(2) an elongated longitudinally disposed and constant diametercylindrical bore, axially aligned with and extending to said socket;

(3) a second elongated, constant diameter cylindrical bore, axiallyaligned with the first mentioned bore and of larger diameter than thefirst mentioned bore to form a shoulder at the junction of said bores,the end of the second mentioned bore opposite said junction terminatingin an inwardly spun cylindrically shaped shoulder, said shouldersconfronting one another;

(B) an elongated nut-ejecting rod having an ejector end disposed withinsaid sleeve and having a constant diameter throughout the ejector endand throughout the length of the first mentioned bore, and throughoutthe major portion of the second mentioned bore,

and substantially complementing the first mentioned bore in diameter,said rod having:

(4) a shoulder within the second mentioned bore 3 4 in abuttablerelationship with the second men abutting relationship with the secondmentioned tioned shoulder; shoulder in the second mentioned bore.

(5) and a section extending outwardly of the 2. A nut-ejector typesocket wrench as defined in claim second mentioned shoulder and beyondthe end 1, in which that portion of the sleeve, which extends from ofthe sleeve; 5 the socket end thereof to adjacent said junction, iscircular (6) said rod having a longitudinal and cylindriin shape and ofconstant diameter, and that portion from cal bore therein at that endthereof which is adjacent said junction and throughout substantially theadjacent said socket; length of the second mentioned bore is of largerdiameter.

(C) and a coil spring interposed between the first and second mentionedshoulders, said coil spring sur- 10 References Clted y the Examlnel'rounding the rod and being under compression nor- UNITED S S A S mallyyieldingly urging the shoulder on the rod in abutting relationship withthe second mentioned E312 shoulder in the second mentioned bore, theejector end of said rod terminating adjacent the inner end 15 of thesocket when the shoulder on the rod is in WILLIAM FELDMAN PumaryExammel'

1. A NUT-EJECTOR TYPE SOCKET WRENCH, COMPRISING IN COMBINATION: (A) ANINTEGRAL AND ELONGATED SLEEVE HAVING THE SHAPE OF: (1) A SOCKET FOR ANUT AT ONE END OF THE SLEEVE; (2) AN ELONGATED LONGITUDINALLY DISPOSEDAND CONSTANT DIAMETER CYLINDRICAL BORE, AXIALLY ALIGNED WITH ANDEXTENDING TO SAID SOCKET; (3) A SECOND ELONGATED, CONSTANT DIAMETERCYLINDRICAL BORE, AXIALLY ALIGNED WITH THE FIRST MENTIONED BORE AND OFLARGER DIAMETER THAN THE FIRST MENTIONED BORE TO FORM A SHOULDER AT THEJUNCTION OF SAID BORES, THE END OF THE SECOND MENTIONED BORE OPPOSITELYSAID JUNCTION TERMINATING IN AN INWARDLY SPUN CYLINDRICALLY SHAPEDSHOULDER, SAID SHOULDERS CONFRONTING ONE ANOTHER; (B) AN ELONGATEDNUT-EJECTING ROD HAVING AN EJECTOR END DISPOSED WITHIN SAID SLEEVE ANDHAVING A CONSTANT DIAMETER THROUGHOUT THE EJECTOR END AND THROUGHOUT THELENGTH OF THE FIRST MENTIONED BORE, AND THROUGHOUT THE MAJOR PORTION OFTHE SECOND MENTIONED BORE, AND SUBSTANTIALLY COMPLEMENTING THE FIRSTMENTIONED BORE IN DIAMETER, SAID ROD HAVING: (4) A SHOULDER WITHIN THESECOND MENTIONED BORE IN ABUTTABLE RELATIONSHIP WITH THE SECONDMENTIONED SHOULDER; (5) AND A SECTION EXTENDING OUTWARDLY OF THE SECONDMENTIONED SHOULDER AND BEYOND THE END OF THE SLEEVE; (6) SAID ROD HAVINGA LONGITUDINAL AND CYLINDRICAL BORE THEREIN AT THAT END THEREOF WHICH ISADJACENT SAID SOCKET; (C) AND A COIL SPRING INTERPOSED BETWEEN THE FIRSTAND SECOND MENTIONED SHOULDERS, SAID COIL SPRING SURROUNDING THE ROD ANDBEING UNDER COMPRESSION NORMALLY YIELDINGLY URGING THE SHOULDER ON THEROD IN ABUTTING RELATIONSHIP WITH THE SECOND MENTIONED SHOULDER IN THESECOND MENTIONED BORE, THE EJECTOR END OF SAID ROD TERMINATING ADJACENTTHE INNER END OF THE SOCKET WHEN THE SHOULDER ON THE ROD IS IN ABUTTINGRELATIONSHIP WITH THE SECOND MENTIONED SHOULDER IN THE SECOND MENTIONEDBORE.